Did my 2nd NYC Marathon and ran into an issue that never cropped up in any races or training.
At around mile 18, my HR went as high as 200 and my watch alerted me. My first thought was wondering if my new gels had caffeine in them, but I knew they didn't.
I didn't feel out of breath or like I was overly exerting myself. Just the normal leg fatigue at this point in the race.
Worried, I decided to slow down until I was back in the green zone. Then, I'd speed up until in the red. Then, slow down, etc. I did this until the end.
This ever happen to anyone? This has never happened to me.
I guess just more training can help avoid?